Description and evaluation of the Model for Ozone and Related chemical Tracers, version 4 (MOZART-4)
L. K. Emmons1,S. Walters1,P. G. Hess1,*,J.-F. Lamarque1,G. G. Pfister1,D. Fillmore1,**,C. Granier2,3,A. Guenther1,D. Kinnison1,T. Laepple1,***,J. Orlando1,X. Tie1,G. Tyndall1,C. Wiedinmyer1,S. L. Baughcum4,and S. Kloster5,*L. K. Emmons et al. L. K. Emmons1,S. Walters1,P. G. Hess1,*,J.-F. Lamarque1,G. G. Pfister1,D. Fillmore1,**,C. Granier2,3,A. Guenther1,D. Kinnison1,T. Laepple1,***,J. Orlando1,X. Tie1,G. Tyndall1,C. Wiedinmyer1,S. L. Baughcum4,and S. Kloster5,*
1National Center for Atmospheric Research, Boulder, CO, USA
2Centre National de la Recherche Scientifique, Paris, France
3NOAA, Earth System Research Laboratory, Boulder, CO, USA
4Boeing Company, Seattle, WA, USA
5Max-Planck-Institute for Meteorology, Hamburg, Germany
*now at: Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
**now at: Tech-X Corporation, Boulder, CO, USA
***now at: Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
Received: 06 Aug 2009 – Discussion started: 27 Aug 2009 – Revised: 07 Dec 2009 – Accepted: 08 Dec 2009 – Published: 12 Jan 2010
Abstract. The Model for Ozone and Related chemical Tracers, version 4 (MOZART-4) is an offline global chemical transport model particularly suited for studies of the troposphere. The updates of the model from its previous version MOZART-2 are described, including an expansion of the chemical mechanism to include more detailed hydrocarbon chemistry and bulk aerosols. Online calculations of a number of processes, such as dry deposition, emissions of isoprene and monoterpenes and photolysis frequencies, are now included. Results from an eight-year simulation (2000–2007) are presented and evaluated. The MOZART-4 source code and standard input files are available for download from the NCAR Community Data Portal (http://cdp.ucar.edu).
